Common names from other countries

Alose d'été du Canada, Sábalo del Canadá, Blueback herring, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Alosidae (Shads and Sardines)
Etymology: Alosa: Latin, alausa = a fish cited by Ausonius and Latin, halec = pickle, dealing with the Greek word hals = salt; it is also the old Saxon name for shad = "alli" ; 1591 (Ref. 45335).
More on author: Mitchill.

Environment: milieu / climate zone / depth range / distribution range экология

морской; пресноводный; солоноватоводный; анадромный (Ref. 51243); пределы глубины 5 - 55 m (Ref. 5951). Subtropical; 47°N - 27°N, 84°W - 60°W (Ref. 117456)

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Western Atlantic: Cape Breton, Nova Scotia south to the St. John's River, Florida; also in lower parts of rivers (Ref. 188). Introduced in reservoirs in several states, and in the upper Tennessee River system in Tennessee, USA (Ref. 117456, 86798).

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 40.0 cm SL самец/пол неопределен; (Ref. 7251); common length : 27.5 cm SL самец/пол неопределен; (Ref. 188); наибольший вес (опубликованные данные): 200.00 g (Ref. 7251); наибольший возраст (опубликованны данные): 8 годы (Ref. 12193)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 15 - 20; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 15 - 21; позвонки: 47 - 53. Moderately compressed, belly with distinct keel of scutes. Upper jaw with a distinct notch; lower jaw rising steeply within mouth; minute teeth present at front of jaws (disappearing with age). Lower gill rakers 41 to 52 (fewer in fishes under 10 cm standard length), slender. Back dark blue, sometimes bluish-grey; a dark spot on shoulder (Ref. 188). Peritoneum black (Ref. 7251). Branchiostegal rays 7 (Ref. 4639).

Inhabits rivers, estuaries, coastal waters, lakes and reservoirs (Ref. 117456). Adults are found in saltwater except during the spawning season and occur up to at least 200 km offshore (Ref. 117456). Forms schools and possibly wintering near the bottom and out from the coast, approaching the shore in the late spring. Feeds on small fishes, copepods and small shrimps. Spawns in brackish- or freshwaters of rivers, arriving in coastal waters a month or so later than A. pseudoharengus (in April at Chesapeake Bay, apparently when the water is above 7.0° C and later further north). Eggs are essentially pelagic, demersal in still water (Ref. 4639). Larvae are found in fresh and brackish rivers (Ref. 4639). Juveniles leave fresh and brackish nursery grounds at about 5 cm, migrating downstream (Ref. 4639). In freshwater habitat, this species usually occurs in current over rocky bottom (Ref. 86798). Marketed mostly fresh and salted (Ref. 188). Parasites found are acanthocephalan and nematodes (Ref. 37032).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Upriver movement to spawning areas occur in late afternoon or at night (Ref. 4639).

Основная ссылка Upload your references | ссылки | координатор | соавторы

Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)

Статус Красного Списка МСОП (Ref. 130435)

уязвимый; см. Красный Список МСОП (VU) (A2b); Date assessed: 13 October 2011

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

рыболовство: коммерческий

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дополнительная информация

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Life cycle
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Estimates based on models

Preferred temperature (Ref. 115969): 11.5 - 24.7, mean 23.7 (based on 86 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00794 (0.00370 - 0.01703), b=3.04 (2.87 - 3.21), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.3 se; based on diet studies.

устойчивость к внешним воздействиям (Ref. 120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (K=0.18; tm=4; Fec=45,800).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (39 of 100).

Climate Vulnerability (Ref. 125649): Moderate to high vulnerability (50 of 100).

Категория цены (Ref. 80766): Low.

Alosa aestivalis (Mitchill, 1814)